Seismic performance evaluation of Y-shaped eccentric brace–high-strength steel frame structure based on remote collaborative hybrid test

Li, Tengfei; Su, Mingzhou; Guo, Jiangran; Zhao, Kun; Zhang, Qi

doi:10.1016/j.soildyn.2022.107621

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…stability analysis [30]. Li, TF et al developed a remote cooperative hybrid test (RCHT) system based on the OpenFresco platform [31]. Sarassantika, IPE et al evaluated the performance of a frame equipped with a new lever arm damper in support (LAD-Brace) [32].…”

Section: Plos Onementioning

confidence: 99%

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Yang,

Wang

2024

PLoS ONE

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The stable and site-specific operation of transmission lines is a crucial safeguard for grid functionality. This study introduces a comprehensive optimization design method for transmission line crossing frame structures based on the Biogeography-Based Optimization (BBO) algorithm, which integrates size, shape, and topology optimization. By utilizing the BBO algorithm to optimize the truss structure’s design variables, the method ensures the structure’s economic and practical viability while enhancing its performance. The optimization process is validated through finite element analysis, confirming the optimized structure’s compliance with strength, stiffness, and stability requirements. The results demonstrate that the integrated design of size, shape, and topology optimization, as opposed to individual optimizations of size or shape and topology, yields the lightest structure mass and a maximum stress of 151.4 MPa under construction conditions. These findings also satisfy the criteria for strength, stiffness, and stability, verifying the method’s feasibility, effectiveness, and practicality. This approach surpasses traditional optimization methods, offering a more effective solution for complex structural optimization challenges, thereby enhancing the sustainable utilization of structures.

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Section: Plos Onementioning

confidence: 99%

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Yang,

Wang

2024

PLoS ONE

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Numerical Parameter Analysis of High-Strength Steel Frame with Y-Eccentric Brace Using Variable Replaceable Link

Chen,

Li,

Liang

et al. 2024

Buildings

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The present study proposes a variable replaceable link for high-strength steel frames with Y-eccentric braces designed to effectively dissipate earthquake energy by confining plastic deformation to its central zone. This unique feature allows for easy post-earthquake recovery or replacement. To investigate the seismic performance of such structures, a comprehensive finite element numerical parametric analysis is conducted using ABAQUS software. Various parameters, including the length of the central zone, replaceable link length, span, and steel grade are considered to optimize the structural design. This study examines the failure modes, hysteretic behavior, bearing capacity, plastic rotation of the replaceable link, and ductility of structures under cyclic loading. The results indicate that reducing the span and utilizing high-strength steel significantly enhance the ductility and ultimate bearing capacity of the structure. This approach also reduces the cross-sectional dimensions, saves steel material, and limits the development area of plasticity, thereby facilitating post-earthquake repair of links after rare earthquakes. An optimal length of the link improves the structural stiffness and energy dissipation capacity. However, if it is too short or too long, it complicates post-earthquake repairs and impairs energy dissipation performance. The conclusions drawn from this research aim to provide valuable insights and theoretical foundations for future structural designs.

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Seismic performance evaluation of Y-shaped eccentric brace–high-strength steel frame structure based on remote collaborative hybrid test

Cited by 2 publications

References 15 publications

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Numerical Parameter Analysis of High-Strength Steel Frame with Y-Eccentric Brace Using Variable Replaceable Link

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